In spite of the acknowledged importance of growth-promoting bacteria, only a reduced number of studies were conducted with these microorganisms on Theobroma cacao. The objectives of this work were to study the population densities and genetic diversity of actinomycetes associated with the rhizosphere of cacao as a first step in their application in plant growth promotion and biological control....

Actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. A total of 44 strains of actinomycetes were isolated from Caspian Sea sediments at a depth of 5-10 m. Preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. The most potent strains MN2, MN3, MN38, MN39, MN...

OBJECTIVES To study the associations between exposure to bioaerosols and work-related symptoms, lung function and biomarkers of airway inflammation in compost workers. MATERIALS AND METHOD Personal full-shift exposure measurements were performed on 47 workers employed at five windrow plants (n=20) and five reactor plants (n=27). Samples were analyzed for endotoxins, bacteria, fungal and actin...

Actinomycetes remain one of the leading sources of microbial-derived natural products. Able to colonize various ecological niches including the most extreme, they are, increasingly, concerned research materials of microbial physiology from adverse circumstance. In this work, actinomycetes were isolated from soils of the region Beni Amir, Morocco, where the salinity is, relatively, high degrees....

Attack by bacterial viruses on members of the genus Actinomyces has been reported in only a few instances, but bacteriophages which attack Eumycetes are prevalent. Many industrial processes which employ bacteria are subject, to bacteriophage infestations. The isolation of bacteriophage from soil and sewage may be easily accomplished, but soil cannot be considered an abundant source of actinopha...

Actinobacteria are well known as secondary metabolites producers and hence of high pharmacological and commercial interest. In this study, soil samples were collected from Devathanam, a small town situated at the foothills of Western Ghats of Virudhunagar District, India and tests were performed to assess the presence of Actinomycetes and their morphology and biochemical activities. Nearly fift...

Microorganisms growing in saline environments represent an important source of biologically active compounds. Such environments are distributed all over the world and mainly include oceans, coastal and deep sea locations, soda lakes, soda deserts as well as artificial salterns. Many antibacterial, antifungal, anti-tumor, cytotoxic and photo protective compounds have been isolated till date from...

The study aimed at determining the in vitro antimicrobial activity of alkaliphilic and halotolerant actinomycetes isolated from a mangrove ecosystem and identification of a potent strain. Twenty five isolates of actinomycetes were isolated from the sediment samples of Valapattanam mangrove swamp in Kerala, India. Antimicrobial activity of four selected actinomycete isolates was determined again...

In the era when large whole genome bacterial datasets are generated routinely, rapid and accurate molecular systematics is becoming increasingly important. However, 16S ribosomal RNA sequencing does not always offer sufficient resolution to discriminate between closely related genera. The SsgA-like proteins are developmental regulatory proteins in sporulating actinomycetes, whereby SsgB activel...